Testing 30th Testable Statement of Sec 10.8 of CSS2 Specification

PASS CRITERIA:

If statement #30 above is passed, then this div has line-height of 12pt. Rule is "#id1 {line-height: 1.2; font-size: 10pt}".
This div has line-height also of 12pt. Rule is "#id2 {line-height: 1.2em; font-size: 10pt}".
This div also has line-height of 12pt. Rule is "#id3 {line-height: 120%; font-size: 10pt}".

All other properties of this page should be UA-default.